Syrin v0.9.0 - Smart Budget

[0.9.0] - 2026-03-25

Breaking

• Budget(run=) renamed to Budget(max_cost=)
• agent.response() renamed to agent.run() — old method removed
• per= in rate limits replaced by RateLimit(hour=, day=, month=)

Added

• ExceedPolicy enum — STOP | WARN | IGNORE | SWITCH replaces string policies
• result.cost_estimated — pre-call budget estimate alongside result.cost
• result.cache_savings — cache discount reported per call
• agent.budget_summary() — dashboard dict: run cost, tokens, hourly/daily totals, percent used
• agent.export_costs(format="json") — structured cost history per call
• BudgetStore ABC — plug in any persistence backend (PostgreSQL, Redis, DynamoDB)
• Budget(shared=True) — thread-safe shared pool across parallel agents (SQLite WAL)
• ModelPricing override — pass pricing=ModelPricing(...) to any Model() to override built-in rates
• Docs — full rewrite with correct APIs, custom observability guide, 375+ fixed internal links

Fixed

• SQLite budget store thread safety under parallel spawns
• Threshold callbacks no longer re-fire on the same percentage within a run
• PIIScanner redaction applied before content reaches the LLM
• Memory.import_from() logging noise removed